The figure shows a man of mass m standing at the end A of a troll… - Vidyadip

MCQ

The figure shows a man of mass $m$ standing at the end $A$ of a trolley of mass $M$ placed at rest on a smooth horizontal surface. The man starts moving towards the end $B$ with a velocity $u_{rel}$ with respect to the trolley. The length of the trolley is $L$. When the man starts moving, then the velocity of the trolley $v_2$ with respect to ground will be

A
$\frac{{M{u_{rel}}}}{{m + M}}$
✓
$\frac{{m{u_{rel}}}}{{m + M}}$
C
$\frac{m}{M}{u_{rel}}$
D
$\frac{M}{m}{u_{rel}}$

✓

Answer

Correct option: B.

$\frac{{m{u_{rel}}}}{{m + M}}$

b

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